Ventilator



(No Model.)

P. GASSNER.

. VENTILATOR. No. 268,183. Patented Nov- 28, 1882.

" Win 6356s. 1717272202".-

UNITED STATES PATENT OFFICE.

PEYTONCASSNER, or GOULD, KANSAS.

SVENTILATOR.

SPECIFICATION forming part of Letters Patent No. 268,183, dated November 28, 1882. Application filed April 4, 1882. (N model.)

To all whom it may concern r I lowing is a specification, reference being had therein to the accompanyingdrawings.

My invention relates to a certain improvement in means for the ventilation of rooms, in connection with a stove-pipe or smoke-flue, and is hereinafter first described, and then designated in the claim.

In the drawings hereto annexed, Figure 1 shows my invention as applied to an ordinary stove-pipe in a house. Figs. 2, 3, 4, and5 are views showing the parts in detail.

The letter A designates the floors of the house; B, the stove; (J, the stove-pipe, from under the hood 0 of which the smoke issues, as indicated by the arrows. The smoke-pipe, of course, is continuous from the stove to the said hood. Surrounding the smoke-pipe is a larger pipe, D, theinterveningspace, e, in which serves as the ventilator-flue. Suitable provision is made to secure the smoke-pipe in the center of the ventilating-flue, or, in other words, to secure an intervening space about the smoke-pipe of equal dimension all around. This is effected by the angular bent stripsf, of sheet metal, attached to the smoke-pipeby rivetsf, as seen in Fig. 5. These strips bend outward or away from the smoke-pipe far enough to serve as stays to rest against the innerside of the wall of the ventilating-flue,

and when three or four of these stay-strips are thus secured about the smoke-pipe at a given point they will insure that the intervening space shall be of equal dimension all around. It is important that the devicef to equalize the dimension of the surrounding space shall be attached, as shown, to the smoke-pipe only, as thereby the two pipes may be readily separated and taken down when it is necessarytto' clean the smoke-pipe of soot. As indicated in Fig. 4, these stay-strips are secured to the pipe at suitable intervals throughout its length. Instead of the stay-strips to effect the equal dimension of the intervening space, a perforated ring-shaped diaphragm of sheet metal maybe used,the same to he placed around the I smokepipe and between itand the ventilating- In the lower room, or where the apparatus is used in a house of but one story, the lower end, 9, of the ventilating-flue-that is, the interveniug-may be open for the admission of vitiated air, as indicated in Fig. 1 by the arrows. This open end should be near the ceilingof the room. In thecaseof an upper room, or where the same flue extends through more than one story, provision is made for the admission of the vitiated air by forming holes h in the wall of the flue. These holes are placed only near the ceiling, as shown, and the air of the room finds entrance to the intervening space, 0, through said holes. The extreme up per end of the ventilating-flue is covered by a downward-flaring collar or cap, D, the small upperend of whichfits oloselyaboutthe smokepipe, while the down'flariug part sets over and rests upon the upper end, 2', of the flue, (see Fig. 5,) and thus serves to prevent rain or snow from entering the intervening space. Outletholes a are made in the extreme upper end of the vent-flue for the escape of the vitiated air. It is immaterial as to what shape these outlets have. They may be holes in the wall of the flue, as shown, or the upper end of said flue may be notched, so that while the air may find outlet through the notches the downfiaring notches. To afl'ord protection to these outlets in the vent-flue, the downflaring collar is provided with a depending flange, 1), which forms a guard around the air-outlets. By this an rangement the air from the intervening space escapes through the outlets '12 under thedownflaring collar, and thence passes out from under the depending flange 12.

Figs. 2 and 5 show the upper end, q, of the smoke pipe. The hood 0' is attached to a short section of pipe, 1", which sets down over and around the said upper end of the smokepipe, and the lower edge of the short section r rests upon the small upper end of the flaring collar D, as shown in Fig. 5. Thereby all the parts are so tightly fitted as to exclude rain or snow.

Should it be desired to use a stove in an upper room where the vent-flue and smoke-pipe extend from a lower room through the floor to the upper story, as shown in Fig. 1, the smokepipe of the stove in said upper room mustpass into the venttlue and connect, as shown at S,

to the smoke-pipe from the lower room.

From the foregoing description the operation is obvious. First, the heat of the smokepipe induces an upward draft in the intervening space, which insures the escape of the vitiated air, and the construction of the parts at the upper end of the smoke-pipe and vent-flue is such as to insure a tight lit and thoroughly exclude the rain or snow.

I am aware that a double tube with a space between has been employed for ventilating buildings-as, for instance,- that shown in United States Patent No. 142,598, dated September 9, 1S73and such I do not claim 7 broadly.

Having described my invention, I claim and desire to secure by Letters Patent of the United Statespipes may be readily separated all the parts are so tightlyfitted together as to exclude rain, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

PEYTON OASSNER.

Witnesses:

A. J. ELLIS, J. \V. CAREY. 

